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This code sets up a Ruby development environment with a specific Ruby version (2.4.1) using rbenv and Homebrew, including dependencies for building extensions and tools for working with ZeroMQ.

Run example

npm run import -- "install ruby"

install ruby

brew
install
rbenv
automake
gmp
libtool
wget
rbenv
install
2.4
.1
rbenv
global
2.4
.1
echo
'eval "$(rbenv init -)"' >> ~/.bashrc
source
~/.bashrc

brew
install
zeromq
brew
install
czmq--
HEAD
gem
install
cztop
iruby
iruby
register--
force

What the code could have been:

#!/bin/bash

# Install Ruby using rbenv
brew install rbenv automake gmp libtool wget
rbenv install -v 2.4.1

# Set default ruby version globally
rbenv global 2.4.1

# Add rbenv init to bashrc
echo "eval \"\$(rbenv init -)\"" >> ~/.bashrc
source ~/.bashrc

# Install ZeroMQ and czmq using Homebrew
brew install zeromq czmq --HEAD

# Install cztop gem
gem install cztop

# Install iruby and register it for usage
iruby register --force

This code snippet sets up a Ruby development environment using Homebrew and rbenv.

Here's a breakdown:

  1. brew install rbenv automake gmp libtool wget: This installs several packages required for building Ruby extensions and managing dependencies using Homebrew.

  2. rbenv install 2.4.1: This installs Ruby version 2.4.1 using rbenv, a tool for managing multiple Ruby versions.

  3. rbenv global 2.4.1: This sets Ruby 2.4.1 as the global default Ruby version for the system.

  4. echo 'eval "$(rbenv init -)"' >> ~/.bashrc: This adds the rbenv initialization script to the user's shell configuration file (~/.bashrc), ensuring rbenv is loaded automatically when the shell starts.

  5. source ~/.bashrc: This reloads the shell configuration file, applying the changes made in the previous step.

  6. brew install zeromq czmq --HEAD: This installs the ZeroMQ messaging library and its C bindings using Homebrew.

  7. gem install cztop: This installs the cztop gem, a command-line tool for monitoring ZeroMQ processes.

  8. iruby iruby register --force: This registers the iruby command, which is likely a custom Ruby interpreter, with the system.

In essence, this code snippet sets up a Ruby development environment with a specific Ruby version, necessary dependencies, and tools for working with ZeroMQ.